{"uid":"cap_Vbj-NyBYiiZUT06lZ2Lkc","slug":"nexusapi-crypto-address-balance-lookup-8abb8996","name":"NexusAPI Crypto Address Balance Lookup","description":"Crypto, AI, Social Media, Finance, Weather, Tools & more. Pay per call in USDC on Base. No API keys.","url":"https://nexus-api-virid.vercel.app/api/crypto/address/balance","method":"POST","headers":{},"bodySchema":{"type":"object","properties":{"query":{"type":"string","description":"Search query or input parameter"}}},"responseSchema":{"type":"object","description":"API response data"},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.149836","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.149836/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.149836","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.149836","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_ivEt9jFTuERM9kfMdORPN","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.149836","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Returns the cryptocurrency balance for a given blockchain address","exampleAgentPrompt":"What's the current crypto balance for the address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e?","exampleUseCases":[{"title":"Portfolio balance monitoring","prompt":"Can you check the current balance on my wallet address 0xAbC123...def456 and tell me how much crypto is sitting there?"},{"title":"DeFi audit for a suspicious wallet","prompt":"Look up the balance of this blockchain address 0x1a2b3c4d5e6f7890abcdef1234567890abcdef12 — I want to know exactly how much is in it."},{"title":"Payment confirmation check","prompt":"I just sent funds to address 0x9fE46736679d2D9a65F0992F2272dE9f3c7fa6e0 — can you verify the balance there to confirm the payment arrived?"}],"resultDescription":"Returns the cryptocurrency balance held at the specified blockchain address, including token amounts and potentially multi-asset holdings across supported chains.","failureModes":["Invalid or malformed blockchain address returns an error","Address with no transaction history may return zero balance","Unsupported chain or token type may yield incomplete results","Network congestion may cause delayed or stale balance data","Missing or empty query parameter returns a validation error"],"whenToPreferThis":"Use this endpoint when you need a quick, no-API-key lookup of a specific cryptocurrency wallet address balance and are willing to pay per call in USDC on Base. Ideal for AI agents that need on-demand blockchain balance data without managing API credentials.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-13T18:39:03.289Z","isFirstParty":false}